[Working principle of dot matrix pen]
It adopts ordinary ballpoint pen refill with pressure sensitivity function. When the dot matrix digital pen writes on the special dot matrix paper, the pen tip is pressed down at the same time, and the pressure sensitivity is generated. The pressure sensor is triggered, and the built-in With a high-speed camera, the camera starts to record the running trajectory of the pen at a speed of 100 pictures per second, takes pictures of the dot matrix passed by the pen tip, and transmits information such as dot matrix coordinates, handwriting order, pressure data, and movement speed to the built-in processor. Form a bitmap document. Finally, it is output through the Bluetooth or USB communication unit. Some pen types can temporarily store data in memory and output it when necessary.
[Dot Matrix Pen, Dot Matrix Workbook, and Homework Paper]
Cooperating with dot matrix homework book and homework paper, it can realize real-time synchronization between students' writing on the paper and the whiteboard of the smart classroom in the classroom.
【Connection and use of dot matrix pen】
(1) Opening of the dot matrix pen: open the pen cap, gently press the pen tip, or press and hold the connection button at the end of the dot matrix pen, the indicator light is on, indicating that the dot matrix pen is in the Bluetooth searchable state, and the dot matrix pen is ready.
(2) Open the settings panel on the student tablet and click the "dot matrix pen" button.
(3) Search dot-matrix pen: start to search dot-matrix pen on the following page, if the dot-matrix pen is in the Bluetooth searchable state, after a few seconds, the Android tablet and the dot-matrix pen are successfully connected.
(4) Successful connection: When students write their answers in class and homework, they can answer on the dot-matrix draft paper, and the answers will be synchronized to the corresponding writing area.
Let the dot matrix pen help classroom teaching
——Observation on teaching application of dot-matrix pen teaching in the leading pilot project of Nanjing Shangyuan Middle School
Internet + education is in the ascendant and flourishing. The use of information technology to provide new methods and new impetus for the in-depth transformation of teaching models and learning methods is the inevitable trend of the 2.0 stage of education informatization. How does the teacher grasp the learning situation of the students in the fast class? Traditional teaching methods obviously cannot complete the process of collection and statistics in the classroom. Intelligent writing makes teaching and guidance clear.
On January 20, 2022, the classroom of Class 1 (15) of Shangyuan Middle School in Nanjing was full of voices, and the scene of flying chalk dust could not be seen in the classroom. It turned out that the traditional blackboard and chalk were replaced by electronic large screens and dot matrix pens. , a unique leading pilot project dot-matrix pen teaching application demonstration was held in Shangyuan Middle School.
Cai Jun, director of the school's educational technology office, organized all the teachers of the first grade department to participate in the observation of the teaching application of dot matrix pens. Engineer Zou Yuanyuan of Guangzhou Qinglu Company gave a report entitled "Paper and Pen Interactive Classroom System Operation" to the participating teachers. Engineer Zou introduced the structure of the dot matrix pen and how to use it to the teachers. Dot-matrix pen, it seems that the tip of the pen is no different from that of an ordinary ballpoint pen. The high-speed camera at the front of the pen captures the movement trajectory of the pen tip at any time, scans the dot matrix pattern printed on ordinary paper, and sends the pressure data back to the data processor through the pressure sensor. , a new type of writing instrument that finally transmits information to the outside (tablet) via Bluetooth or USB cable. It is a new type of writing synchronization tool for paper media and digital media.
When writing, the dot-matrix digital pen stores the text or pictures written on the paper in the computer in the form of a bitmap to form a document, and synchronously cooperates with the use of projection equipment and other tools to realize computer control and electronic whiteboard presentations on the projection. Function. On the other hand, through real-time feedback of the user's handwriting, in this way, real-time writing, paper screen synchronization, the teacher can quickly understand the student's problem-solving situation in the classroom, and improve classroom efficiency. At the same time, students do not change their writing habits and pen skills when answering.
Engineer Zou demonstrates that when writing on special paper, the content is simultaneously presented on the screen in the form of virtual handwriting. The teacher can directly demonstrate, correct and comment on the students' writing content directly on the electronic whiteboard screen, that is, to realize the synchronization of writing and screen presentation, and to approve immediately after completion. The teacher representatives came to the stage to practice and experience the functions of the dot matrix pen. They believe that the dot matrix pen not only counts the answers to each question, but also allows teachers to monitor each student's answering process, understand students' weak points more comprehensively, adjust teaching methods in a timely manner, and make classroom teaching more targeted. Improve classroom efficiency. Many teachers came to the stage to interact with great interest. They were full of interest and gained a lot.
Section Chief Song Tao and Section Chief Shen Wei of Nanjing Education Technology Equipment Center also came to the scene and gave guidance. Finally, Section Chief Song imagined for us the future of the pen-and-paper smart classroom in the era of big data.
Educating people is the foundation, focusing on the classroom, and the forerunner goes first. As an effective means of assisting classroom teaching, modern information technology plays an important role in improving the effect of the classroom and optimizing the classroom structure. As Section Chief Song said, "Let technology serve teaching and educating people!"